Mishra A, Shamsunder S, Malik S, Zaheer S. Collision tumour of ovary: a rare combination of fibrothecoma with serous cystadenoma. Int J Reprod Contracept Obstet Gynecol [Internet]. 2017 Mar. 30 [cited 2025 Oct. 13];6(4):1643-5. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/1235